diff options
Diffstat (limited to 'x.c')
| -rw-r--r-- | x.c | 1766 |
1 files changed, 1766 insertions, 0 deletions
@@ -0,0 +1,1766 @@ +/* See LICENSE for license details. */ +#include <errno.h> +#include <locale.h> +#include <signal.h> +#include <stdint.h> +#include <sys/select.h> +#include <time.h> +#include <unistd.h> +#include <libgen.h> +#include <X11/Xatom.h> +#include <X11/Xlib.h> +#include <X11/Xutil.h> +#include <X11/cursorfont.h> +#include <X11/keysym.h> +#include <X11/Xft/Xft.h> +#include <X11/XKBlib.h> + +#include "arg.h" + +#define Glyph Glyph_ +#define Font Font_ + +#include "win.h" +#include "st.h" + +/* XEMBED messages */ +#define XEMBED_FOCUS_IN 4 +#define XEMBED_FOCUS_OUT 5 + +/* macros */ +#define TRUERED(x) (((x) & 0xff0000) >> 8) +#define TRUEGREEN(x) (((x) & 0xff00)) +#define TRUEBLUE(x) (((x) & 0xff) << 8) + +typedef XftDraw *Draw; +typedef XftColor Color; + +/* Purely graphic info */ +typedef struct { + Display *dpy; + Colormap cmap; + Window win; + Drawable buf; + Atom xembed, wmdeletewin, netwmname, netwmpid; + XIM xim; + XIC xic; + Draw draw; + Visual *vis; + XSetWindowAttributes attrs; + int scr; + int isfixed; /* is fixed geometry? */ + int l, t; /* left and top offset */ + int gm; /* geometry mask */ +} XWindow; + +typedef struct { + Atom xtarget; +} XSelection; + +/* Font structure */ +typedef struct { + int height; + int width; + int ascent; + int descent; + int badslant; + int badweight; + short lbearing; + short rbearing; + XftFont *match; + FcFontSet *set; + FcPattern *pattern; +} Font; + +/* Drawing Context */ +typedef struct { + Color *col; + size_t collen; + Font font, bfont, ifont, ibfont; + GC gc; +} DC; + +static inline ushort sixd_to_16bit(int); +static int xmakeglyphfontspecs(XftGlyphFontSpec *, const Glyph *, int, int, int); +static void xdrawglyphfontspecs(const XftGlyphFontSpec *, Glyph, int, int, int); +static void xdrawglyph(Glyph, int, int); +static void xclear(int, int, int, int); +static void xdrawcursor(void); +static int xgeommasktogravity(int); +static int xloadfont(Font *, FcPattern *); +static void xsetsel(char *, Time); +static void xunloadfont(Font *); + +static void expose(XEvent *); +static void visibility(XEvent *); +static void unmap(XEvent *); +static void kpress(XEvent *); +static void cmessage(XEvent *); +static void resize(XEvent *); +static void focus(XEvent *); +static void brelease(XEvent *); +static void bpress(XEvent *); +static void bmotion(XEvent *); +static void propnotify(XEvent *); +static void selnotify(XEvent *); +static void selclear_(XEvent *); +static void selrequest(XEvent *); + +static void selcopy(Time); +static void getbuttoninfo(XEvent *); +static void mousereport(XEvent *); + +static void (*handler[LASTEvent])(XEvent *) = { + [KeyPress] = kpress, + [ClientMessage] = cmessage, + [ConfigureNotify] = resize, + [VisibilityNotify] = visibility, + [UnmapNotify] = unmap, + [Expose] = expose, + [FocusIn] = focus, + [FocusOut] = focus, + [MotionNotify] = bmotion, + [ButtonPress] = bpress, + [ButtonRelease] = brelease, +/* + * Uncomment if you want the selection to disappear when you select something + * different in another window. + */ +/* [SelectionClear] = selclear_, */ + [SelectionNotify] = selnotify, +/* + * PropertyNotify is only turned on when there is some INCR transfer happening + * for the selection retrieval. + */ + [PropertyNotify] = propnotify, + [SelectionRequest] = selrequest, +}; + +/* Globals */ +static DC dc; +static XWindow xw; +static XSelection xsel; + +/* Font Ring Cache */ +enum { + FRC_NORMAL, + FRC_ITALIC, + FRC_BOLD, + FRC_ITALICBOLD +}; + +typedef struct { + XftFont *font; + int flags; + Rune unicodep; +} Fontcache; + +/* Fontcache is an array now. A new font will be appended to the array. */ +static Fontcache frc[16]; +static int frclen = 0; + +void +getbuttoninfo(XEvent *e) +{ + int type; + uint state = e->xbutton.state & ~(Button1Mask | forceselmod); + + sel.alt = IS_SET(MODE_ALTSCREEN); + + sel.oe.x = x2col(e->xbutton.x); + sel.oe.y = y2row(e->xbutton.y); + selnormalize(); + + sel.type = SEL_REGULAR; + for (type = 1; type < selmaskslen; ++type) { + if (match(selmasks[type], state)) { + sel.type = type; + break; + } + } +} + +void +mousereport(XEvent *e) +{ + int x = x2col(e->xbutton.x), y = y2row(e->xbutton.y), + button = e->xbutton.button, state = e->xbutton.state, + len; + char buf[40]; + static int ox, oy; + + /* from urxvt */ + if (e->xbutton.type == MotionNotify) { + if (x == ox && y == oy) + return; + if (!IS_SET(MODE_MOUSEMOTION) && !IS_SET(MODE_MOUSEMANY)) + return; + /* MOUSE_MOTION: no reporting if no button is pressed */ + if (IS_SET(MODE_MOUSEMOTION) && oldbutton == 3) + return; + + button = oldbutton + 32; + ox = x; + oy = y; + } else { + if (!IS_SET(MODE_MOUSESGR) && e->xbutton.type == ButtonRelease) { + button = 3; + } else { + button -= Button1; + if (button >= 3) + button += 64 - 3; + } + if (e->xbutton.type == ButtonPress) { + oldbutton = button; + ox = x; + oy = y; + } else if (e->xbutton.type == ButtonRelease) { + oldbutton = 3; + /* MODE_MOUSEX10: no button release reporting */ + if (IS_SET(MODE_MOUSEX10)) + return; + if (button == 64 || button == 65) + return; + } + } + + if (!IS_SET(MODE_MOUSEX10)) { + button += ((state & ShiftMask ) ? 4 : 0) + + ((state & Mod4Mask ) ? 8 : 0) + + ((state & ControlMask) ? 16 : 0); + } + + if (IS_SET(MODE_MOUSESGR)) { + len = snprintf(buf, sizeof(buf), "\033[<%d;%d;%d%c", + button, x+1, y+1, + e->xbutton.type == ButtonRelease ? 'm' : 'M'); + } else if (x < 223 && y < 223) { + len = snprintf(buf, sizeof(buf), "\033[M%c%c%c", + 32+button, 32+x+1, 32+y+1); + } else { + return; + } + + ttywrite(buf, len); +} + +void +bpress(XEvent *e) +{ + struct timespec now; + MouseShortcut *ms; + + if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) { + mousereport(e); + return; + } + + for (ms = mshortcuts; ms < mshortcuts + mshortcutslen; ms++) { + if (e->xbutton.button == ms->b + && match(ms->mask, e->xbutton.state)) { + ttysend(ms->s, strlen(ms->s)); + return; + } + } + + if (e->xbutton.button == Button1) { + clock_gettime(CLOCK_MONOTONIC, &now); + + /* Clear previous selection, logically and visually. */ + selclear_(NULL); + sel.mode = SEL_EMPTY; + sel.type = SEL_REGULAR; + sel.oe.x = sel.ob.x = x2col(e->xbutton.x); + sel.oe.y = sel.ob.y = y2row(e->xbutton.y); + + /* + * If the user clicks below predefined timeouts specific + * snapping behaviour is exposed. + */ + if (TIMEDIFF(now, sel.tclick2) <= tripleclicktimeout) { + sel.snap = SNAP_LINE; + } else if (TIMEDIFF(now, sel.tclick1) <= doubleclicktimeout) { + sel.snap = SNAP_WORD; + } else { + sel.snap = 0; + } + selnormalize(); + + if (sel.snap != 0) + sel.mode = SEL_READY; + tsetdirt(sel.nb.y, sel.ne.y); + sel.tclick2 = sel.tclick1; + sel.tclick1 = now; + } +} + +void +selcopy(Time t) +{ + xsetsel(getsel(), t); +} + +void +propnotify(XEvent *e) +{ + XPropertyEvent *xpev; + Atom clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0); + + xpev = &e->xproperty; + if (xpev->state == PropertyNewValue && + (xpev->atom == XA_PRIMARY || + xpev->atom == clipboard)) { + selnotify(e); + } +} + +void +selnotify(XEvent *e) +{ + ulong nitems, ofs, rem; + int format; + uchar *data, *last, *repl; + Atom type, incratom, property; + + incratom = XInternAtom(xw.dpy, "INCR", 0); + + ofs = 0; + if (e->type == SelectionNotify) { + property = e->xselection.property; + } else if(e->type == PropertyNotify) { + property = e->xproperty.atom; + } else { + return; + } + if (property == None) + return; + + do { + if (XGetWindowProperty(xw.dpy, xw.win, property, ofs, + BUFSIZ/4, False, AnyPropertyType, + &type, &format, &nitems, &rem, + &data)) { + fprintf(stderr, "Clipboard allocation failed\n"); + return; + } + + if (e->type == PropertyNotify && nitems == 0 && rem == 0) { + /* + * If there is some PropertyNotify with no data, then + * this is the signal of the selection owner that all + * data has been transferred. We won't need to receive + * PropertyNotify events anymore. + */ + MODBIT(xw.attrs.event_mask, 0, PropertyChangeMask); + XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, + &xw.attrs); + } + + if (type == incratom) { + /* + * Activate the PropertyNotify events so we receive + * when the selection owner does send us the next + * chunk of data. + */ + MODBIT(xw.attrs.event_mask, 1, PropertyChangeMask); + XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, + &xw.attrs); + + /* + * Deleting the property is the transfer start signal. + */ + XDeleteProperty(xw.dpy, xw.win, (int)property); + continue; + } + + /* + * As seen in getsel: + * Line endings are inconsistent in the terminal and GUI world + * copy and pasting. When receiving some selection data, + * replace all '\n' with '\r'. + * FIXME: Fix the computer world. + */ + repl = data; + last = data + nitems * format / 8; + while ((repl = memchr(repl, '\n', last - repl))) { + *repl++ = '\r'; + } + + if (IS_SET(MODE_BRCKTPASTE) && ofs == 0) + ttywrite("\033[200~", 6); + ttysend((char *)data, nitems * format / 8); + if (IS_SET(MODE_BRCKTPASTE) && rem == 0) + ttywrite("\033[201~", 6); + XFree(data); + /* number of 32-bit chunks returned */ + ofs += nitems * format / 32; + } while (rem > 0); + + /* + * Deleting the property again tells the selection owner to send the + * next data chunk in the property. + */ + XDeleteProperty(xw.dpy, xw.win, (int)property); +} + +void +xselpaste(void) +{ + XConvertSelection(xw.dpy, XA_PRIMARY, xsel.xtarget, XA_PRIMARY, + xw.win, CurrentTime); +} + +void +xclipcopy(void) +{ + Atom clipboard; + + if (sel.clipboard != NULL) + free(sel.clipboard); + + if (sel.primary != NULL) { + sel.clipboard = xstrdup(sel.primary); + clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0); + XSetSelectionOwner(xw.dpy, clipboard, xw.win, CurrentTime); + } +} + +void +xclippaste(void) +{ + Atom clipboard; + + clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0); + XConvertSelection(xw.dpy, clipboard, xsel.xtarget, clipboard, + xw.win, CurrentTime); +} + +void +selclear_(XEvent *e) +{ + selclear(); +} + +void +selrequest(XEvent *e) +{ + XSelectionRequestEvent *xsre; + XSelectionEvent xev; + Atom xa_targets, string, clipboard; + char *seltext; + + xsre = (XSelectionRequestEvent *) e; + xev.type = SelectionNotify; + xev.requestor = xsre->requestor; + xev.selection = xsre->selection; + xev.target = xsre->target; + xev.time = xsre->time; + if (xsre->property == None) + xsre->property = xsre->target; + + /* reject */ + xev.property = None; + + xa_targets = XInternAtom(xw.dpy, "TARGETS", 0); + if (xsre->target == xa_targets) { + /* respond with the supported type */ + string = xsel.xtarget; + XChangeProperty(xsre->display, xsre->requestor, xsre->property, + XA_ATOM, 32, PropModeReplace, + (uchar *) &string, 1); + xev.property = xsre->property; + } else if (xsre->target == xsel.xtarget || xsre->target == XA_STRING) { + /* + * xith XA_STRING non ascii characters may be incorrect in the + * requestor. It is not our problem, use utf8. + */ + clipboard = XInternAtom(xw.dpy, "CLIPBOARD", 0); + if (xsre->selection == XA_PRIMARY) { + seltext = sel.primary; + } else if (xsre->selection == clipboard) { + seltext = sel.clipboard; + } else { + fprintf(stderr, + "Unhandled clipboard selection 0x%lx\n", + xsre->selection); + return; + } + if (seltext != NULL) { + XChangeProperty(xsre->display, xsre->requestor, + xsre->property, xsre->target, + 8, PropModeReplace, + (uchar *)seltext, strlen(seltext)); + xev.property = xsre->property; + } + } + + /* all done, send a notification to the listener */ + if (!XSendEvent(xsre->display, xsre->requestor, 1, 0, (XEvent *) &xev)) + fprintf(stderr, "Error sending SelectionNotify event\n"); +} + +void +xsetsel(char *str, Time t) +{ + free(sel.primary); + sel.primary = str; + + XSetSelectionOwner(xw.dpy, XA_PRIMARY, xw.win, t); + if (XGetSelectionOwner(xw.dpy, XA_PRIMARY) != xw.win) + selclear_(NULL); +} + +void +brelease(XEvent *e) +{ + if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) { + mousereport(e); + return; + } + + if (e->xbutton.button == Button2) { + xselpaste(); + } else if (e->xbutton.button == Button1) { + if (sel.mode == SEL_READY) { + getbuttoninfo(e); + selcopy(e->xbutton.time); + } else + selclear_(NULL); + sel.mode = SEL_IDLE; + tsetdirt(sel.nb.y, sel.ne.y); + } +} + +void +bmotion(XEvent *e) +{ + int oldey, oldex, oldsby, oldsey; + + if (IS_SET(MODE_MOUSE) && !(e->xbutton.state & forceselmod)) { + mousereport(e); + return; + } + + if (!sel.mode) + return; + + sel.mode = SEL_READY; + oldey = sel.oe.y; + oldex = sel.oe.x; + oldsby = sel.nb.y; + oldsey = sel.ne.y; + getbuttoninfo(e); + + if (oldey != sel.oe.y || oldex != sel.oe.x) + tsetdirt(MIN(sel.nb.y, oldsby), MAX(sel.ne.y, oldsey)); +} + +void +xresize(int col, int row) +{ + win.tw = MAX(1, col * win.cw); + win.th = MAX(1, row * win.ch); + + XFreePixmap(xw.dpy, xw.buf); + xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h, + DefaultDepth(xw.dpy, xw.scr)); + XftDrawChange(xw.draw, xw.buf); + xclear(0, 0, win.w, win.h); +} + +ushort +sixd_to_16bit(int x) +{ + return x == 0 ? 0 : 0x3737 + 0x2828 * x; +} + +int +xloadcolor(int i, const char *name, Color *ncolor) +{ + XRenderColor color = { .alpha = 0xffff }; + + if (!name) { + if (BETWEEN(i, 16, 255)) { /* 256 color */ + if (i < 6*6*6+16) { /* same colors as xterm */ + color.red = sixd_to_16bit( ((i-16)/36)%6 ); + color.green = sixd_to_16bit( ((i-16)/6) %6 ); + color.blue = sixd_to_16bit( ((i-16)/1) %6 ); + } else { /* greyscale */ + color.red = 0x0808 + 0x0a0a * (i - (6*6*6+16)); + color.green = color.blue = color.red; + } + return XftColorAllocValue(xw.dpy, xw.vis, + xw.cmap, &color, ncolor); + } else + name = colorname[i]; + } + + return XftColorAllocName(xw.dpy, xw.vis, xw.cmap, name, ncolor); +} + +void +xloadcols(void) +{ + int i; + static int loaded; + Color *cp; + + dc.collen = MAX(colornamelen, 256); + dc.col = xmalloc(dc.collen * sizeof(Color)); + + if (loaded) { + for (cp = dc.col; cp < &dc.col[dc.collen]; ++cp) + XftColorFree(xw.dpy, xw.vis, xw.cmap, cp); + } + + for (i = 0; i < dc.collen; i++) + if (!xloadcolor(i, NULL, &dc.col[i])) { + if (colorname[i]) + die("Could not allocate color '%s'\n", colorname[i]); + else + die("Could not allocate color %d\n", i); + } + loaded = 1; +} + +int +xsetcolorname(int x, const char *name) +{ + Color ncolor; + + if (!BETWEEN(x, 0, dc.collen)) + return 1; + + + if (!xloadcolor(x, name, &ncolor)) + return 1; + + XftColorFree(xw.dpy, xw.vis, xw.cmap, &dc.col[x]); + dc.col[x] = ncolor; + + return 0; +} + +/* + * Absolute coordinates. + */ +void +xclear(int x1, int y1, int x2, int y2) +{ + XftDrawRect(xw.draw, + &dc.col[IS_SET(MODE_REVERSE)? defaultfg : defaultbg], + x1, y1, x2-x1, y2-y1); +} + +void +xhints(void) +{ + XClassHint class = {opt_name ? opt_name : termname, + opt_class ? opt_class : termname}; + XWMHints wm = {.flags = InputHint, .input = 1}; + XSizeHints *sizeh = NULL; + + sizeh = XAllocSizeHints(); + + sizeh->flags = PSize | PResizeInc | PBaseSize; + sizeh->height = win.h; + sizeh->width = win.w; + sizeh->height_inc = win.ch; + sizeh->width_inc = win.cw; + sizeh->base_height = 2 * borderpx; + sizeh->base_width = 2 * borderpx; + if (xw.isfixed) { + sizeh->flags |= PMaxSize | PMinSize; + sizeh->min_width = sizeh->max_width = win.w; + sizeh->min_height = sizeh->max_height = win.h; + } + if (xw.gm & (XValue|YValue)) { + sizeh->flags |= USPosition | PWinGravity; + sizeh->x = xw.l; + sizeh->y = xw.t; + sizeh->win_gravity = xgeommasktogravity(xw.gm); + } + + XSetWMProperties(xw.dpy, xw.win, NULL, NULL, NULL, 0, sizeh, &wm, + &class); + XFree(sizeh); +} + +int +xgeommasktogravity(int mask) +{ + switch (mask & (XNegative|YNegative)) { + case 0: + return NorthWestGravity; + case XNegative: + return NorthEastGravity; + case YNegative: + return SouthWestGravity; + } + + return SouthEastGravity; +} + +int +xloadfont(Font *f, FcPattern *pattern) +{ + FcPattern *configured; + FcPattern *match; + FcResult result; + XGlyphInfo extents; + int wantattr, haveattr; + + /* + * Manually configure instead of calling XftMatchFont + * so that we can use the configured pattern for + * "missing glyph" lookups. + */ + configured = FcPatternDuplicate(pattern); + if (!configured) + return 1; + + FcConfigSubstitute(NULL, configured, FcMatchPattern); + XftDefaultSubstitute(xw.dpy, xw.scr, configured); + + match = FcFontMatch(NULL, configured, &result); + if (!match) { + FcPatternDestroy(configured); + return 1; + } + + if (!(f->match = XftFontOpenPattern(xw.dpy, match))) { + FcPatternDestroy(configured); + FcPatternDestroy(match); + return 1; + } + + if ((XftPatternGetInteger(pattern, "slant", 0, &wantattr) == + XftResultMatch)) { + /* + * Check if xft was unable to find a font with the appropriate + * slant but gave us one anyway. Try to mitigate. + */ + if ((XftPatternGetInteger(f->match->pattern, "slant", 0, + &haveattr) != XftResultMatch) || haveattr < wantattr) { + f->badslant = 1; + fputs("st: font slant does not match\n", stderr); + } + } + + if ((XftPatternGetInteger(pattern, "weight", 0, &wantattr) == + XftResultMatch)) { + if ((XftPatternGetInteger(f->match->pattern, "weight", 0, + &haveattr) != XftResultMatch) || haveattr != wantattr) { + f->badweight = 1; + fputs("st: font weight does not match\n", stderr); + } + } + + XftTextExtentsUtf8(xw.dpy, f->match, + (const FcChar8 *) ascii_printable, + strlen(ascii_printable), &extents); + + f->set = NULL; + f->pattern = configured; + + f->ascent = f->match->ascent; + f->descent = f->match->descent; + f->lbearing = 0; + f->rbearing = f->match->max_advance_width; + + f->height = f->ascent + f->descent; + f->width = DIVCEIL(extents.xOff, strlen(ascii_printable)); + + return 0; +} + +void +xloadfonts(char *fontstr, double fontsize) +{ + FcPattern *pattern; + double fontval; + float ceilf(float); + + if (fontstr[0] == '-') { + pattern = XftXlfdParse(fontstr, False, False); + } else { + pattern = FcNameParse((FcChar8 *)fontstr); + } + + if (!pattern) + die("st: can't open font %s\n", fontstr); + + if (fontsize > 1) { + FcPatternDel(pattern, FC_PIXEL_SIZE); + FcPatternDel(pattern, FC_SIZE); + FcPatternAddDouble(pattern, FC_PIXEL_SIZE, (double)fontsize); + usedfontsize = fontsize; + } else { + if (FcPatternGetDouble(pattern, FC_PIXEL_SIZE, 0, &fontval) == + FcResultMatch) { + usedfontsize = fontval; + } else if (FcPatternGetDouble(pattern, FC_SIZE, 0, &fontval) == + FcResultMatch) { + usedfontsize = -1; + } else { + /* + * Default font size is 12, if none given. This is to + * have a known usedfontsize value. + */ + FcPatternAddDouble(pattern, FC_PIXEL_SIZE, 12); + usedfontsize = 12; + } + defaultfontsize = usedfontsize; + } + + if (xloadfont(&dc.font, pattern)) + die("st: can't open font %s\n", fontstr); + + if (usedfontsize < 0) { + FcPatternGetDouble(dc.font.match->pattern, + FC_PIXEL_SIZE, 0, &fontval); + usedfontsize = fontval; + if (fontsize == 0) + defaultfontsize = fontval; + } + + /* Setting character width and height. */ + win.cw = ceilf(dc.font.width * cwscale); + win.ch = ceilf(dc.font.height * chscale); + + FcPatternDel(pattern, FC_SLANT); + FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC); + if (xloadfont(&dc.ifont, pattern)) + die("st: can't open font %s\n", fontstr); + + FcPatternDel(pattern, FC_WEIGHT); + FcPatternAddInteger(pattern, FC_WEIGHT, FC_WEIGHT_BOLD); + if (xloadfont(&dc.ibfont, pattern)) + die("st: can't open font %s\n", fontstr); + + FcPatternDel(pattern, FC_SLANT); + FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ROMAN); + if (xloadfont(&dc.bfont, pattern)) + die("st: can't open font %s\n", fontstr); + + FcPatternDestroy(pattern); +} + +void +xunloadfont(Font *f) +{ + XftFontClose(xw.dpy, f->match); + FcPatternDestroy(f->pattern); + if (f->set) + FcFontSetDestroy(f->set); +} + +void +xunloadfonts(void) +{ + /* Free the loaded fonts in the font cache. */ + while (frclen > 0) + XftFontClose(xw.dpy, frc[--frclen].font); + + xunloadfont(&dc.font); + xunloadfont(&dc.bfont); + xunloadfont(&dc.ifont); + xunloadfont(&dc.ibfont); +} + +void +xinit(void) +{ + XGCValues gcvalues; + Cursor cursor; + Window parent; + pid_t thispid = getpid(); + XColor xmousefg, xmousebg; + + if (!(xw.dpy = XOpenDisplay(NULL))) + die("Can't open display\n"); + xw.scr = XDefaultScreen(xw.dpy); + xw.vis = XDefaultVisual(xw.dpy, xw.scr); + + /* font */ + if (!FcInit()) + die("Could not init fontconfig.\n"); + + usedfont = (opt_font == NULL)? font : opt_font; + xloadfonts(usedfont, 0); + + /* colors */ + xw.cmap = XDefaultColormap(xw.dpy, xw.scr); + xloadcols(); + + /* adjust fixed window geometry */ + win.w = 2 * borderpx + term.col * win.cw; + win.h = 2 * borderpx + term.row * win.ch; + if (xw.gm & XNegative) + xw.l += DisplayWidth(xw.dpy, xw.scr) - win.w - 2; + if (xw.gm & YNegative) + xw.t += DisplayHeight(xw.dpy, xw.scr) - win.h - 2; + + /* Events */ + xw.attrs.background_pixel = dc.col[defaultbg].pixel; + xw.attrs.border_pixel = dc.col[defaultbg].pixel; + xw.attrs.bit_gravity = NorthWestGravity; + xw.attrs.event_mask = FocusChangeMask | KeyPressMask + | ExposureMask | VisibilityChangeMask | StructureNotifyMask + | ButtonMotionMask | ButtonPressMask | ButtonReleaseMask; + xw.attrs.colormap = xw.cmap; + + if (!(opt_embed && (parent = strtol(opt_embed, NULL, 0)))) + parent = XRootWindow(xw.dpy, xw.scr); + xw.win = XCreateWindow(xw.dpy, parent, xw.l, xw.t, + win.w, win.h, 0, XDefaultDepth(xw.dpy, xw.scr), InputOutput, + xw.vis, CWBackPixel | CWBorderPixel | CWBitGravity + | CWEventMask | CWColormap, &xw.attrs); + + memset(&gcvalues, 0, sizeof(gcvalues)); + gcvalues.graphics_exposures = False; + dc.gc = XCreateGC(xw.dpy, parent, GCGraphicsExposures, + &gcvalues); + xw.buf = XCreatePixmap(xw.dpy, xw.win, win.w, win.h, + DefaultDepth(xw.dpy, xw.scr)); + XSetForeground(xw.dpy, dc.gc, dc.col[defaultbg].pixel); + XFillRectangle(xw.dpy, xw.buf, dc.gc, 0, 0, win.w, win.h); + + /* Xft rendering context */ + xw.draw = XftDrawCreate(xw.dpy, xw.buf, xw.vis, xw.cmap); + + /* input methods */ + if ((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) { + XSetLocaleModifiers("@im=local"); + if ((xw.xim = XOpenIM(xw.dpy, NULL, NULL, NULL)) == NULL) { + XSetLocaleModifiers("@im="); + if ((xw.xim = XOpenIM(xw.dpy, + NULL, NULL, NULL)) == NULL) { + die("XOpenIM failed. Could not open input" + " device.\n"); + } + } + } + xw.xic = XCreateIC(xw.xim, XNInputStyle, XIMPreeditNothing + | XIMStatusNothing, XNClientWindow, xw.win, + XNFocusWindow, xw.win, NULL); + if (xw.xic == NULL) + die("XCreateIC failed. Could not obtain input method.\n"); + + /* white cursor, black outline */ + cursor = XCreateFontCursor(xw.dpy, mouseshape); + XDefineCursor(xw.dpy, xw.win, cursor); + + if (XParseColor(xw.dpy, xw.cmap, colorname[mousefg], &xmousefg) == 0) { + xmousefg.red = 0xffff; + xmousefg.green = 0xffff; + xmousefg.blue = 0xffff; + } + + if (XParseColor(xw.dpy, xw.cmap, colorname[mousebg], &xmousebg) == 0) { + xmousebg.red = 0x0000; + xmousebg.green = 0x0000; + xmousebg.blue = 0x0000; + } + + XRecolorCursor(xw.dpy, cursor, &xmousefg, &xmousebg); + + xw.xembed = XInternAtom(xw.dpy, "_XEMBED", False); + xw.wmdeletewin = XInternAtom(xw.dpy, "WM_DELETE_WINDOW", False); + xw.netwmname = XInternAtom(xw.dpy, "_NET_WM_NAME", False); + XSetWMProtocols(xw.dpy, xw.win, &xw.wmdeletewin, 1); + + xw.netwmpid = XInternAtom(xw.dpy, "_NET_WM_PID", False); + XChangeProperty(xw.dpy, xw.win, xw.netwmpid, XA_CARDINAL, 32, + PropModeReplace, (uchar *)&thispid, 1); + + resettitle(); + XMapWindow(xw.dpy, xw.win); + xhints(); + XSync(xw.dpy, False); + + xsel.xtarget = XInternAtom(xw.dpy, "UTF8_STRING", 0); + if (xsel.xtarget == None) + xsel.xtarget = XA_STRING; +} + +int +xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x, int y) +{ + float winx = borderpx + x * win.cw, winy = borderpx + y * win.ch, xp, yp; + ushort mode, prevmode = USHRT_MAX; + Font *font = &dc.font; + int frcflags = FRC_NORMAL; + float runewidth = win.cw; + Rune rune; + FT_UInt glyphidx; + FcResult fcres; + FcPattern *fcpattern, *fontpattern; + FcFontSet *fcsets[] = { NULL }; + FcCharSet *fccharset; + int i, f, numspecs = 0; + + for (i = 0, xp = winx, yp = winy + font->ascent; i < len; ++i) { + /* Fetch rune and mode for current glyph. */ + rune = glyphs[i].u; + mode = glyphs[i].mode; + + /* Skip dummy wide-character spacing. */ + if (mode == ATTR_WDUMMY) + continue; + + /* Determine font for glyph if different from previous glyph. */ + if (prevmode != mode) { + prevmode = mode; + font = &dc.font; + frcflags = FRC_NORMAL; + runewidth = win.cw * ((mode & ATTR_WIDE) ? 2.0f : 1.0f); + if ((mode & ATTR_ITALIC) && (mode & ATTR_BOLD)) { + font = &dc.ibfont; + frcflags = FRC_ITALICBOLD; + } else if (mode & ATTR_ITALIC) { + font = &dc.ifont; + frcflags = FRC_ITALIC; + } else if (mode & ATTR_BOLD) { + font = &dc.bfont; + frcflags = FRC_BOLD; + } + yp = winy + font->ascent; + } + + /* Lookup character index with default font. */ + glyphidx = XftCharIndex(xw.dpy, font->match, rune); + if (glyphidx) { + specs[numspecs].font = font->match; + specs[numspecs].glyph = glyphidx; + specs[numspecs].x = (short)xp; + specs[numspecs].y = (short)yp; + xp += runewidth; + numspecs++; + continue; + } + + /* Fallback on font cache, search the font cache for match. */ + for (f = 0; f < frclen; f++) { + glyphidx = XftCharIndex(xw.dpy, frc[f].font, rune); + /* Everything correct. */ + if (glyphidx && frc[f].flags == frcflags) + break; + /* We got a default font for a not found glyph. */ + if (!glyphidx && frc[f].flags == frcflags + && frc[f].unicodep == rune) { + break; + } + } + + /* Nothing was found. Use fontconfig to find matching font. */ + if (f >= frclen) { + if (!font->set) + font->set = FcFontSort(0, font->pattern, + 1, 0, &fcres); + fcsets[0] = font->set; + + /* + * Nothing was found in the cache. Now use + * some dozen of Fontconfig calls to get the + * font for one single character. + * + * Xft and fontconfig are design failures. + */ + fcpattern = FcPatternDuplicate(font->pattern); + fccharset = FcCharSetCreate(); + + FcCharSetAddChar(fccharset, rune); + FcPatternAddCharSet(fcpattern, FC_CHARSET, + fccharset); + FcPatternAddBool(fcpattern, FC_SCALABLE, 1); + + FcConfigSubstitute(0, fcpattern, + FcMatchPattern); + FcDefaultSubstitute(fcpattern); + + fontpattern = FcFontSetMatch(0, fcsets, 1, + fcpattern, &fcres); + + /* + * Overwrite or create the new cache entry. + */ + if (frclen >= LEN(frc)) { + frclen = LEN(frc) - 1; + XftFontClose(xw.dpy, frc[frclen].font); + frc[frclen].unicodep = 0; + } + + frc[frclen].font = XftFontOpenPattern(xw.dpy, + fontpattern); + frc[frclen].flags = frcflags; + frc[frclen].unicodep = rune; + + glyphidx = XftCharIndex(xw.dpy, frc[frclen].font, rune); + + f = frclen; + frclen++; + + FcPatternDestroy(fcpattern); + FcCharSetDestroy(fccharset); + } + + specs[numspecs].font = frc[f].font; + specs[numspecs].glyph = glyphidx; + specs[numspecs].x = (short)xp; + specs[numspecs].y = (short)yp; + xp += runewidth; + numspecs++; + } + + return numspecs; +} + +void +xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, int y) +{ + int charlen = len * ((base.mode & ATTR_WIDE) ? 2 : 1); + int winx = borderpx + x * win.cw, winy = borderpx + y * win.ch, + width = charlen * win.cw; + Color *fg, *bg, *temp, revfg, revbg, truefg, truebg; + XRenderColor colfg, colbg; + XRectangle r; + + /* Fallback on color display for attributes not supported by the font */ + if (base.mode & ATTR_ITALIC && base.mode & ATTR_BOLD) { + if (dc.ibfont.badslant || dc.ibfont.badweight) + base.fg = defaultattr; + } else if ((base.mode & ATTR_ITALIC && dc.ifont.badslant) || + (base.mode & ATTR_BOLD && dc.bfont.badweight)) { + base.fg = defaultattr; + } + + if (IS_TRUECOL(base.fg)) { + colfg.alpha = 0xffff; + colfg.red = TRUERED(base.fg); + colfg.green = TRUEGREEN(base.fg); + colfg.blue = TRUEBLUE(base.fg); + XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &truefg); + fg = &truefg; + } else { + fg = &dc.col[base.fg]; + } + + if (IS_TRUECOL(base.bg)) { + colbg.alpha = 0xffff; + colbg.green = TRUEGREEN(base.bg); + colbg.red = TRUERED(base.bg); + colbg.blue = TRUEBLUE(base.bg); + XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg, &truebg); + bg = &truebg; + } else { + bg = &dc.col[base.bg]; + } + + /* Change basic system colors [0-7] to bright system colors [8-15] */ + if ((base.mode & ATTR_BOLD_FAINT) == ATTR_BOLD && BETWEEN(base.fg, 0, 7)) + fg = &dc.col[base.fg + 8]; + + if (IS_SET(MODE_REVERSE)) { + if (fg == &dc.col[defaultfg]) { + fg = &dc.col[defaultbg]; + } else { + colfg.red = ~fg->color.red; + colfg.green = ~fg->color.green; + colfg.blue = ~fg->color.blue; + colfg.alpha = fg->color.alpha; + XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, + &revfg); + fg = &revfg; + } + + if (bg == &dc.col[defaultbg]) { + bg = &dc.col[defaultfg]; + } else { + colbg.red = ~bg->color.red; + colbg.green = ~bg->color.green; + colbg.blue = ~bg->color.blue; + colbg.alpha = bg->color.alpha; + XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colbg, + &revbg); + bg = &revbg; + } + } + + if (base.mode & ATTR_REVERSE) { + temp = fg; + fg = bg; + bg = temp; + } + + if ((base.mode & ATTR_BOLD_FAINT) == ATTR_FAINT) { + colfg.red = fg->color.red / 2; + colfg.green = fg->color.green / 2; + colfg.blue = fg->color.blue / 2; + XftColorAllocValue(xw.dpy, xw.vis, xw.cmap, &colfg, &revfg); + fg = &revfg; + } + + if (base.mode & ATTR_BLINK && term.mode & MODE_BLINK) + fg = bg; + + if (base.mode & ATTR_INVISIBLE) + fg = bg; + + /* Intelligent cleaning up of the borders. */ + if (x == 0) { + xclear(0, (y == 0)? 0 : winy, borderpx, + winy + win.ch + ((y >= term.row-1)? win.h : 0)); + } + if (x + charlen >= term.col) { + xclear(winx + width, (y == 0)? 0 : winy, win.w, + ((y >= term.row-1)? win.h : (winy + win.ch))); + } + if (y == 0) + xclear(winx, 0, winx + width, borderpx); + if (y == term.row-1) + xclear(winx, winy + win.ch, winx + width, win.h); + + /* Clean up the region we want to draw to. */ + XftDrawRect(xw.draw, bg, winx, winy, width, win.ch); + + /* Set the clip region because Xft is sometimes dirty. */ + r.x = 0; + r.y = 0; + r.height = win.ch; + r.width = width; + XftDrawSetClipRectangles(xw.draw, winx, winy, &r, 1); + + /* Render the glyphs. */ + XftDrawGlyphFontSpec(xw.draw, fg, specs, len); + + /* Render underline and strikethrough. */ + if (base.mode & ATTR_UNDERLINE) { + XftDrawRect(xw.draw, fg, winx, winy + dc.font.ascent + 1, + width, 1); + } + + if (base.mode & ATTR_STRUCK) { + XftDrawRect(xw.draw, fg, winx, winy + 2 * dc.font.ascent / 3, + width, 1); + } + + /* Reset clip to none. */ + XftDrawSetClip(xw.draw, 0); +} + +void +xdrawglyph(Glyph g, int x, int y) +{ + int numspecs; + XftGlyphFontSpec spec; + + numspecs = xmakeglyphfontspecs(&spec, &g, 1, x, y); + xdrawglyphfontspecs(&spec, g, numspecs, x, y); +} + +void +xdrawcursor(void) +{ + static int oldx = 0, oldy = 0; + int curx; + Glyph g = {' ', ATTR_NULL, defaultbg, defaultcs}, og; + int ena_sel = sel.ob.x != -1 && sel.alt == IS_SET(MODE_ALTSCREEN); + Color drawcol; + + LIMIT(oldx, 0, term.col-1); + LIMIT(oldy, 0, term.row-1); + + curx = term.c.x; + + /* adjust position if in dummy */ + if (term.line[oldy][oldx].mode & ATTR_WDUMMY) + oldx--; + if (term.line[term.c.y][curx].mode & ATTR_WDUMMY) + curx--; + + /* remove the old cursor */ + og = term.line[oldy][oldx]; + if (ena_sel && selected(oldx, oldy)) + og.mode ^= ATTR_REVERSE; + xdrawglyph(og, oldx, oldy); + + g.u = term.line[term.c.y][term.c.x].u; + + /* + * Select the right color for the right mode. + */ + if (IS_SET(MODE_REVERSE)) { + g.mode |= ATTR_REVERSE; + g.bg = defaultfg; + if (ena_sel && selected(term.c.x, term.c.y)) { + drawcol = dc.col[defaultcs]; + g.fg = defaultrcs; + } else { + drawcol = dc.col[defaultrcs]; + g.fg = defaultcs; + } + } else { + if (ena_sel && selected(term.c.x, term.c.y)) { + drawcol = dc.col[defaultrcs]; + g.fg = defaultfg; + g.bg = defaultrcs; + } else { + drawcol = dc.col[defaultcs]; + } + } + + if (IS_SET(MODE_HIDE)) + return; + + /* draw the new one */ + if (win.state & WIN_FOCUSED) { + switch (win.cursor) { + case 7: /* st extension: snowman */ + utf8decode("☃", &g.u, UTF_SIZ); + case 0: /* Blinking Block */ + case 1: /* Blinking Block (Default) */ + case 2: /* Steady Block */ + g.mode |= term.line[term.c.y][curx].mode & ATTR_WIDE; + xdrawglyph(g, term.c.x, term.c.y); + break; + case 3: /* Blinking Underline */ + case 4: /* Steady Underline */ + XftDrawRect(xw.draw, &drawcol, + borderpx + curx * win.cw, + borderpx + (term.c.y + 1) * win.ch - \ + cursorthickness, + win.cw, cursorthickness); + break; + case 5: /* Blinking bar */ + case 6: /* Steady bar */ + XftDrawRect(xw.draw, &drawcol, + borderpx + curx * win.cw, + borderpx + term.c.y * win.ch, + cursorthickness, win.ch); + break; + } + } else { + XftDrawRect(xw.draw, &drawcol, + borderpx + curx * win.cw, + borderpx + term.c.y * win.ch, + win.cw - 1, 1); + XftDrawRect(xw.draw, &drawcol, + borderpx + curx * win.cw, + borderpx + term.c.y * win.ch, + 1, win.ch - 1); + XftDrawRect(xw.draw, &drawcol, + borderpx + (curx + 1) * win.cw - 1, + borderpx + term.c.y * win.ch, + 1, win.ch - 1); + XftDrawRect(xw.draw, &drawcol, + borderpx + curx * win.cw, + borderpx + (term.c.y + 1) * win.ch - 1, + win.cw, 1); + } + oldx = curx, oldy = term.c.y; +} + +void +xsetenv(void) +{ + char buf[sizeof(long) * 8 + 1]; + + snprintf(buf, sizeof(buf), "%lu", xw.win); + setenv("WINDOWID", buf, 1); +} + +void +xsettitle(char *p) +{ + XTextProperty prop; + + Xutf8TextListToTextProperty(xw.dpy, &p, 1, XUTF8StringStyle, + &prop); + XSetWMName(xw.dpy, xw.win, &prop); + XSetTextProperty(xw.dpy, xw.win, &prop, xw.netwmname); + XFree(prop.value); +} + +void +draw(void) +{ + drawregion(0, 0, term.col, term.row); + XCopyArea(xw.dpy, xw.buf, xw.win, dc.gc, 0, 0, win.w, + win.h, 0, 0); + XSetForeground(xw.dpy, dc.gc, + dc.col[IS_SET(MODE_REVERSE)? + defaultfg : defaultbg].pixel); +} + +void +drawregion(int x1, int y1, int x2, int y2) +{ + int i, x, y, ox, numspecs; + Glyph base, new; + XftGlyphFontSpec *specs; + int ena_sel = sel.ob.x != -1 && sel.alt == IS_SET(MODE_ALTSCREEN); + + if (!(win.state & WIN_VISIBLE)) + return; + + for (y = y1; y < y2; y++) { + if (!term.dirty[y]) + continue; + + term.dirty[y] = 0; + + specs = term.specbuf; + numspecs = xmakeglyphfontspecs(specs, &term.line[y][x1], x2 - x1, x1, y); + + i = ox = 0; + for (x = x1; x < x2 && i < numspecs; x++) { + new = term.line[y][x]; + if (new.mode == ATTR_WDUMMY) + continue; + if (ena_sel && selected(x, y)) + new.mode ^= ATTR_REVERSE; + if (i > 0 && ATTRCMP(base, new)) { + xdrawglyphfontspecs(specs, base, i, ox, y); + specs += i; + numspecs -= i; + i = 0; + } + if (i == 0) { + ox = x; + base = new; + } + i++; + } + if (i > 0) + xdrawglyphfontspecs(specs, base, i, ox, y); + } + xdrawcursor(); +} + +void +expose(XEvent *ev) +{ + redraw(); +} + +void +visibility(XEvent *ev) +{ + XVisibilityEvent *e = &ev->xvisibility; + + MODBIT(win.state, e->state != VisibilityFullyObscured, WIN_VISIBLE); +} + +void +unmap(XEvent *ev) +{ + win.state &= ~WIN_VISIBLE; +} + +void +xsetpointermotion(int set) +{ + MODBIT(xw.attrs.event_mask, set, PointerMotionMask); + XChangeWindowAttributes(xw.dpy, xw.win, CWEventMask, &xw.attrs); +} + +void +xseturgency(int add) +{ + XWMHints *h = XGetWMHints(xw.dpy, xw.win); + + MODBIT(h->flags, add, XUrgencyHint); + XSetWMHints(xw.dpy, xw.win, h); + XFree(h); +} + +void +xbell(int vol) +{ + XkbBell(xw.dpy, xw.win, vol, (Atom)NULL); +} + +unsigned long +xwinid(void) +{ + return xw.win; +} + +void +focus(XEvent *ev) +{ + XFocusChangeEvent *e = &ev->xfocus; + + if (e->mode == NotifyGrab) + return; + + if (ev->type == FocusIn) { + XSetICFocus(xw.xic); + win.state |= WIN_FOCUSED; + xseturgency(0); + if (IS_SET(MODE_FOCUS)) + ttywrite("\033[I", 3); + } else { + XUnsetICFocus(xw.xic); + win.state &= ~WIN_FOCUSED; + if (IS_SET(MODE_FOCUS)) + ttywrite("\033[O", 3); + } +} + +void +kpress(XEvent *ev) +{ + XKeyEvent *e = &ev->xkey; + KeySym ksym; + char buf[32], *customkey; + int len; + Rune c; + Status status; + Shortcut *bp; + + if (IS_SET(MODE_KBDLOCK)) + return; + + len = XmbLookupString(xw.xic, e, buf, sizeof buf, &ksym, &status); + /* 1. shortcuts */ + for (bp = shortcuts; bp < shortcuts + shortcutslen; bp++) { + if (ksym == bp->keysym && match(bp->mod, e->state)) { + bp->func(&(bp->arg)); + return; + } + } + + /* 2. custom keys from config.h */ + if ((customkey = kmap(ksym, e->state))) { + ttysend(customkey, strlen(customkey)); + return; + } + + /* 3. composed string from input method */ + if (len == 0) + return; + if (len == 1 && e->state & Mod1Mask) { + if (IS_SET(MODE_8BIT)) { + if (*buf < 0177) { + c = *buf | 0x80; + len = utf8encode(c, buf); + } + } else { + buf[1] = buf[0]; + buf[0] = '\033'; + len = 2; + } + } + ttysend(buf, len); +} + + +void +cmessage(XEvent *e) +{ + /* + * See xembed specs + * http://standards.freedesktop.org/xembed-spec/xembed-spec-latest.html + */ + if (e->xclient.message_type == xw.xembed && e->xclient.format == 32) { + if (e->xclient.data.l[1] == XEMBED_FOCUS_IN) { + win.state |= WIN_FOCUSED; + xseturgency(0); + } else if (e->xclient.data.l[1] == XEMBED_FOCUS_OUT) { + win.state &= ~WIN_FOCUSED; + } + } else if (e->xclient.data.l[0] == xw.wmdeletewin) { + /* Send SIGHUP to shell */ + kill(pid, SIGHUP); + exit(0); + } +} + +void +resize(XEvent *e) +{ + if (e->xconfigure.width == win.w && e->xconfigure.height == win.h) + return; + + cresize(e->xconfigure.width, e->xconfigure.height); + ttyresize(); +} + +void +run(void) +{ + XEvent ev; + int w = win.w, h = win.h; + fd_set rfd; + int xfd = XConnectionNumber(xw.dpy), xev, blinkset = 0, dodraw = 0; + struct timespec drawtimeout, *tv = NULL, now, last, lastblink; + long deltatime; + + /* Waiting for window mapping */ + do { + XNextEvent(xw.dpy, &ev); + /* + * This XFilterEvent call is required because of XOpenIM. It + * does filter out the key event and some client message for + * the input method too. + */ + if (XFilterEvent(&ev, None)) + continue; + if (ev.type == ConfigureNotify) { + w = ev.xconfigure.width; + h = ev.xconfigure.height; + } + } while (ev.type != MapNotify); + + cresize(w, h); + ttynew(); + ttyresize(); + + clock_gettime(CLOCK_MONOTONIC, &last); + lastblink = last; + + for (xev = actionfps;;) { + FD_ZERO(&rfd); + FD_SET(cmdfd, &rfd); + FD_SET(xfd, &rfd); + + if (pselect(MAX(xfd, cmdfd)+1, &rfd, NULL, NULL, tv, NULL) < 0) { + if (errno == EINTR) + continue; + die("select failed: %s\n", strerror(errno)); + } + if (FD_ISSET(cmdfd, &rfd)) { + ttyread(); + if (blinktimeout) { + blinkset = tattrset(ATTR_BLINK); + if (!blinkset) + MODBIT(term.mode, 0, MODE_BLINK); + } + } + + if (FD_ISSET(xfd, &rfd)) + xev = actionfps; + + clock_gettime(CLOCK_MONOTONIC, &now); + drawtimeout.tv_sec = 0; + drawtimeout.tv_nsec = (1000 * 1E6)/ xfps; + tv = &drawtimeout; + + dodraw = 0; + if (blinktimeout && TIMEDIFF(now, lastblink) > blinktimeout) { + tsetdirtattr(ATTR_BLINK); + term.mode ^= MODE_BLINK; + lastblink = now; + dodraw = 1; + } + deltatime = TIMEDIFF(now, last); + if (deltatime > 1000 / (xev ? xfps : actionfps)) { + dodraw = 1; + last = now; + } + + if (dodraw) { + while (XPending(xw.dpy)) { + XNextEvent(xw.dpy, &ev); + if (XFilterEvent(&ev, None)) + continue; + if (handler[ev.type]) + (handler[ev.type])(&ev); + } + + draw(); + XFlush(xw.dpy); + + if (xev && !FD_ISSET(xfd, &rfd)) + xev--; + if (!FD_ISSET(cmdfd, &rfd) && !FD_ISSET(xfd, &rfd)) { + if (blinkset) { + if (TIMEDIFF(now, lastblink) \ + > blinktimeout) { + drawtimeout.tv_nsec = 1000; + } else { + drawtimeout.tv_nsec = (1E6 * \ + (blinktimeout - \ + TIMEDIFF(now, + lastblink))); + } + drawtimeout.tv_sec = \ + drawtimeout.tv_nsec / 1E9; + drawtimeout.tv_nsec %= (long)1E9; + } else { + tv = NULL; + } + } + } + } +} + +int +main(int argc, char *argv[]) +{ + xw.l = xw.t = 0; + xw.isfixed = False; + win.cursor = cursorshape; + + ARGBEGIN { + case 'a': + allowaltscreen = 0; + break; + case 'c': + opt_class = EARGF(usage()); + break; + case 'e': + if (argc > 0) + --argc, ++argv; + goto run; + case 'f': + opt_font = EARGF(usage()); + break; + case 'g': + xw.gm = XParseGeometry(EARGF(usage()), + &xw.l, &xw.t, &cols, &rows); + break; + case 'i': + xw.isfixed = 1; + break; + case 'o': + opt_io = EARGF(usage()); + break; + case 'l': + opt_line = EARGF(usage()); + break; + case 'n': + opt_name = EARGF(usage()); + break; + case 't': + case 'T': + opt_title = EARGF(usage()); + break; + case 'w': + opt_embed = EARGF(usage()); + break; + case 'v': + die("%s " VERSION " (c) 2010-2016 st engineers\n", argv0); + break; + default: + usage(); + } ARGEND; + +run: + if (argc > 0) { + /* eat all remaining arguments */ + opt_cmd = argv; + if (!opt_title && !opt_line) + opt_title = basename(xstrdup(argv[0])); + } + setlocale(LC_CTYPE, ""); + XSetLocaleModifiers(""); + tnew(MAX(cols, 1), MAX(rows, 1)); + xinit(); + selinit(); + run(); + + return 0; +} |